Applies to: NHP-P100 (1 Door Controller), NHP-P200 (2 Door Controller), OnCAFE-compatible configurations

Summary

This article describes the process for wiring peripherals to the NHP-P100 and NHP-P200 controllers. 

Each NHP Controller supports the following components:

• Card Reader (Wiegand or OSDP)
• Electric Lock (Fail-Safe or Fail-Secure)
• REX Sensor (Request to Exit)
• Door Contact (DPS)
• Optional: Fire Alarm Interface (FAI), Auxiliary Input (AUX IN)

Prerequisites

Before wiring peripherals:

• Match cable type to the distance and voltage drop requirements.
   
• Confirm wire colors or terminal block pinout against device manuals.
   

• Label cables and use strain reliefs to prevent troubleshooting issues later.

  

Wiring a Card Reader

The card reader identifies users via physical (Card/Fob), PIN code, or mobile credentials (NFC/BLE) and transmits credentials data to the controller/panel.

To wire a card reader, use shielded 22/6 cable for typical Wiegand wiring.

Wire the card reader (Wiegand or OSDP) as follows:

• Red - RD 12V+ (Power to Reader)
• Black - RD GND (Power Ground)
• Green - DO(A) (Wiegand D0 or RS-485 A)
• White - D1(B) (Wiegand D1 or RS-485 B)
• Brown - LED (Optional - Control Reader LED)
• Orange - BUZ (Optional - Control Reader Buzzer)

Wiring an Electric Lock

The electric lock secures or releases the door. 

To wire an electric lock:

1. Identify the Positive Lock Conductor.
    
2. Determine whether the lock to be connected is Fail-Safe (NC) or Fail-Secure (NO).
     
3. Identify the negative ground wire. 
     
4. Use 18/2 or 18/4 cable for power and control wiring.
    
5. Set the 3-position switch to match lock voltage requirements.
   
   Center - Dry Contact (Relay Only)
   Up - 24VDC Output
   Down - 12VDC Output

Wiring a REX Sensor

The REX Sensor detects motion or proximity to request exit.

To wire a REX Sensor, use 22/4 cable.

Wire the REX Sensor as follows:

• Red - 12V Out (REX Power +)
• Black - GND (REX Power -)
• Green - REX + (Dry Contact NO Output)
• White - REX - (Dry Contact Return)

IMPORTANT: Ensure the REX has a dry contact that closes on motion.

Wiring a Door Contact

The door contact monitors the door status (open/closed). 

To wire a door contact, use a minimum of 22/2 or 22/4 cable.

Wire the door contact as follows:

• White - DPS + (Input +)
• Black - DPS - (Input -)  

Wiring Auxiliary Inputs

AUX IN

• (+) - Auxiliary Sensor Input
• (-) - Ground

FAI (Fire Alarm Interface)

• (+) - Alarm Activation Input
• COM - Common Terminal
• (-) - Reset Input  

Powering the Controller

Power Input (DC IN)

The NHP Controller can be powered by one of the following methods:

• PoE++ (Power over Ethernet – IEEE 802.3bt)
   
• PoE++ (IEEE 802.3bt) 
  
  This is recommended for optimal performance and sufficient current to support locks, readers, and onboard electronics.
   
• Power is supplied through the network port (RJ-45).

Direct 12VDC or 24VDC Input

If not using PoE++, the controller can be powered using a dedicated DC power supply.

Connect the DC IN terminals as follows:

• (+) - 12VDC or 24VDC Input 
• (–) - Ground  

IMPORTANT: Confirm the power supply matches the controller’s rated voltage.

Redundant Power

Either PoE++ or DC IN can act as a backup if one power source fails.

IMPORTANT: Verify the power source provides enough current for all
connected peripherals (locks, readers, sensors, and other connected devices).